Quarterly Percent
1987-06-30 27.9
1987-09-30 15.5
1987-12-31 31.1
1988-03-31 -12.8
1988-06-30 22.4
1988-09-30 18.1
1988-12-31 14.6
1989-03-31 -16.8
1989-06-30 17
1989-09-30 18.3
1989-12-31 13.5
1990-03-31 -1.5
1990-06-30 17.6
1990-09-30 21.8
1990-12-31 20.2
1991-03-31 -18.3
1991-06-30 14.6
1991-09-30 9
1991-12-31 14.8
1992-03-31 -15.3
1992-06-30 11.3
1992-09-30 3.7
1992-12-31 8.3
1993-03-31 -15.4
1993-06-30 14.9
1993-09-30 10.4
1993-12-31 26.8
1994-03-31 -18.1
1994-06-30 29
1994-09-30 18.8
1994-12-31 35.5
1995-03-31 -9.6
1995-06-30 28.6
1995-09-30 17.7
1995-12-31 40.2
1996-03-31 -8.7
1996-06-30 32.6
1996-09-30 25.1
1996-12-31 48.1
1997-03-31 -6.3
1997-06-30 27.1
1997-09-30 23.9
1997-12-31 51.3
1998-03-31 -1.2
1998-06-30 34.1
1998-09-30 28.5
1998-12-31 46.8
1999-03-31 -1.5
1999-06-30 26
1999-09-30 20.7
1999-12-31 40
2000-03-31 0.2
2000-06-30 30.7
2000-09-30 20.3
2000-12-31 34.5
2001-03-31 -5.4
2001-06-30 26.8
2001-09-30 15.1
2001-12-31 34.7
2002-03-31 0.4
2002-06-30 23.8
2002-09-30 23.2
2002-12-31 27.8
2003-03-31 2.7
2003-06-30 33.3
2003-09-30 23.7
2003-12-31 25.5
2004-03-31 5.5
2004-06-30 28
2004-09-30 24.8
2004-12-31 26.7
2005-03-31 3.8
2005-06-30 16.2
2005-09-30 11.3
2005-12-31 14.6
2006-03-31 -5.7
2006-06-30 8.9
2006-09-30 1.7
2006-12-31 10.3
2007-03-31 -9.2
2007-06-30 4.5
2007-09-30 7.3
2007-12-31 15.8
2008-03-31 -4.6
2008-06-30 12.6
2008-09-30 11.8
2008-12-31 12.6
2009-03-31 -5.1
2009-06-30 7.6
2009-09-30 3.8
2009-12-31 13.3
2010-03-31 -7.2
2010-06-30 4.4
2010-09-30 5.2
2010-12-31 11
2011-03-31 -9.2
2011-06-30 7.7
2011-09-30 4.6
2011-12-31 6.8
2012-03-31 -10.2
2012-06-30 5.5
2012-09-30 3.2
2012-12-31 11.2
2013-03-31 -7.7
2013-06-30 8.8
2013-09-30 5.6
2013-12-31 13
2014-03-31 -8
2014-06-30 8.5
2014-09-30 6.1
2014-12-31 14.6
2015-03-31 -7.7
2015-06-30 10
2015-09-30 7.7
2015-12-31 16.3
2016-03-31 -2.9
2016-06-30 11.3
2016-09-30 9.9
2016-12-31 17.9
2017-03-31 -3.6
2017-06-30 13.4
2017-09-30 10.2
2017-12-31 15.7
2018-03-31 -1.8
2018-06-30 14.8
2018-09-30 6.1
2018-12-31 9.8
2019-03-31 -5.1
2019-06-30 9.8
2019-09-30 4.5
2019-12-31 9.9
2020-03-31 -21
2020-06-30 -31.3
2020-09-30 1.8
2020-12-31 -11.6
2021-03-31 -26.1
2021-06-30 15.8
2021-09-30 11.5
2021-12-31 13.7
2022-03-31 1.7
2022-06-30 24.1
2022-09-30 10.3
2022-12-31 14.5
2023-03-31 2.9
2023-06-30 21.2
2023-09-30 12.1
2023-12-31 14.9